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Finding the Fourth Proportional to 1,935,835.84, 2,904,344.52 and 989,871.04

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Solution

The fourth proportional to 1,935,835.84, 2,904,344.52 and 989,871.04 is: 1,485,108.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,935,835.84 : 2,904,344.52 = 989,871.04 : x
  2. Step 2: Convert to fraction form
    1,935,835.84/2,904,344.52 = 989,871.04/x
  3. Step 3: Cross multiply
    1,935,835.84x = 2,904,344.52 × 989,871.04
  4. Step 4: Simplify right side
    1,935,835.84x = 2,874,926,530,530.70
  5. Step 5: Solve for x
    x = 2,874,926,530,530.70/1,935,835.84
  6. Step 6: Final answer
    x = 1,485,108.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.